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I replaced tha hard drive on my Mid-2010 iMac because it failed and was unrecoverable.
Now I need to install Mac Os High Sierra (the latest for Mid 2010), using a USB drive I have to create on Windows, because I have no other Macs.
Now, I know I can use TransMac, but the problem is that I can't find any install DMG online. I also tried to search for Sierra instead of High Sierra, but I couldn't find nothing.
I can't download Sierra from Mac App Store, because I'd need a Mac I don't have right now.
So the main question is: where can I find the DMG file I can use to create the USB recovery drive with TransMac?
Thank you and sorry for bad english!